When I was still using Instagram reels, I was always amazed how quickly the algorithm figured me out. If I hesitated for even a second on a reel, it would amend my next ones immediately. I assume the real trick is comparing it to the average time spent on a reel, everyone spends longer on a wall of text reel, but when I stop on a Linux reel for an extra second, I’m immediately in the 1% for engagement.
I read something years ago about how your phone keyboard tracks your recommended words, it knows if you’re more likely to type apple or Apple, or if you type soup more than average, and any app that gets that data and compares it to the baseline has an instant, in depth profile on you.











I mean it’s been heavily filtered for the better part of a decade. I never really minded some of the filtering, which at first was just quarantining the far right, but then nsfw subs got hidden, etc. Pretty quickly it was the old standard front page with a bit of chaos.
Also strangely enough, when I first started using Reddit around 2011, everyone just went straight to the frontage for everything, and the defaults in the front page dominated the app, it was probably around 2015-2016 that people actually pivoted to /r/all after the defaults of the front page were bland and stagnant, and from then on, the admins have taken steps to make /r/ all bland and stagnant too.